We,Zhejiang Ningsheng Steelpipe Co.,Ltd. is a professional manufacture of SAWL(submerged arc weld Longitudinal) steel pipe by JCOE forming based in Ningbo,China.
Our company shortly presentation as following:
1), Manufacture standard: API.5L PSL1 and PSL2;ASTM A671/A672/A691;GB/T9711
2), Material:Q245R.Q345R.15CrMoR,09MnNiDR.16MoDR.L245-L485(NB.MB),
X42-X70(N.M);A516Cr70(A671 or C70 of A672 and C70,CL11.12.13.22.32.42,Cr(A691.CL22.32.42)etc.
3)Outside diameter:406mm-1626mm(big outside diameter of SAWL)
400mm-3500mm(longitudinal splice welded SAWL)
4)Thickness:6mm-50mm(big outside diameter of SAWL)
6-100mm(longitudinal splice welded SAWL)
5)Length:6M-12M(outside diameter of SAWL)
1M-40M(longitudinal splice welded SAWL)
6) Heat Treatment: Furnace(13500*6000*3500mm),temperature less 1000(+/-5)
7)Finished:printing mark;coating;beveled;ends protector and bolster,
We have following qualifications:
1) ISO9001:2008,
2) ISO14001:2004,
3) OHAS18001:2007,
4) 97/23EC,Annex I,Section 4.3 and EN764-5,Para.4.2 by TUV SUD,
5) DNV,
6) API-5L(A1 level),
7) Manufacture License of Special Equipment of R.P.C.(A1 level),
8) Special Equipment Test Certifications for ASTM A691;A671;A672 and GB/T9711,
9) Work Safety Standardization certification,
10) Radiation Safety License.
Warmly welcome your RFQ in anytime

Contact:Tony Zhang
Zhejiang Ningsheng Steel Pipe Co.,Ltd.
Add.:No.388 Baotao Road Cidong Industrial Zone Cixi,Ningbo,Zhejiang,China
Mobile:+86 13355990401
zhangteyi(at)gmail.com
skype:zhangteyi